Dobby pattern chain



April 1s, 1933.

E. R. HOLMES El" AL DOBBY PATTERN CHAIN -Fled July 1Q, 1931 im ma +3 F1121 15 R5 ,O ,a5 4h F f 5w Q o o o No d b o OLG; vC (o O O O O O O O Q (Q Rw Wo m )C 5' f -J/ r @1 JO O o o o Q5 n o ou@ KDQCQOOOOOnOGQ@ ab H, w B w mmmf nn /I w wwwa ,D

t 'RO fb l F1512 Fljm (a. H l

il-5 i7 \1 cqmlentor's If-Il lbrdge R .Hohne' y 7 Osam U* Panne,

Citt, ornelJ e .--thebar.

`With Vthese and other objects in view which 45'" invention,

Patented Apr. 18, 1933 l UN-m' STATES' E'LRRIDGE R. VHoraires AND osoAR-V. PAYNE, orWORCESTER,YMAssAoHUsnTTs,V AssIGNORsTO cRoMrToN a KNOWLEs LOOM WORKS, or WOROEsTER, MAssAOHUsETTs.

A CORPORATION or ivrAssAOHUsnTTs.

DOBRY PATTERN CHAIN l Application led Ju1y110,

This invention relates toimprovements in. pattern chains fordobbies and it .isthe general object of the .invention to Vprovide-improved` connections 4betvveen adjacent'.dobby 6 pattern chains. .s v 1 Theusual formof dobby chain comprises a set ofwooden bars into which are driven pegs to-lift. the dobby fingers A slotted I Y cylinder grips the sides ofthe bars to feed 10 them to the fingers, and links or loops connect'the various bars together to form an endless chain. The loops have ,heretofore beenv secured to` Wires which extend through l k the bars'and are bent to form eyelets. It is 18 an important object of our invention to prof vide a'larger. connection between adjacent bars than is aiforded by the Wire Without reducing theV pegs capacity Vof the bars. Itis a furtherobject of ourinventlon to 20 provide a flat metal stamping which can be set. intol a bar and having holes to registerv with the peg receiving holes of the bar. The holes in the clip are. preferably somewhat larger than the holes inthebar so that Va A' slight mis-adjustment Will not prevent the proper entry of the pegs. v Y

It is another obj ect ofour linvention to 1mprove thedobby bar by'providing the same with a sheet metal clip Which has attaching eyelets formed by'strikinglugsfrom the body of the clip and forcing said lugs intooppo'-V site sides of the dobby bar to holdthezlatterV againstrelative displacement with respectjto Will appear as the description proceeds, Aour invention resides inthe combinationy and van rangement 'of parts hereinafter vdescribed and biset forth in the claims.v v y c y" In the accompanying dravv1ng,rvvherem tvvo forms of the invention are-shown, l y Fig. 1 is alrear View of twoadjacent bars made according tothepreferred form of our n Fig. 2 is an en d vievv takenin the direction of arrow 2, Fig. 1, s

Fig. 3 is a top plan taken in' the direction oflarrovv, Fig. 1, j If '-4 Fig. 4 isan enlargedplan view .of the clip,

I ing .22 in one edge of the plate 20 as setforth 1931.v serial No. 549,960;

Fig. 5 is an end view of the clip shown in Figa, Y f l f Fig. 6 is a detail of one end of a dobby bar having the'modiii'eolv form of `our invenL tion applied thereto,`and

f Fig/7 isv a vertical section on line 7 7 i Referring'to'Figs. 1 and2, We have shown chain bars 10"Which haverather broad left hand surfaces ll-andrelatively narrow right hand surfaces 12. The surfaces are connected' by inclined sides 13 and' as shovvn particularly in fFig. '3 the end as Well as the sides of each bar may be inclined as at 14. Each bar has extending therethrough a seriesof holes 1.5 Which may be located as'suggested inFig. 1. The holes when arrangedl as set forth herein receive pegs for a double index dobby and these pegs are setforth herein as at 16. It is'to be understood that the order of* they@ pegsin the successivebars of the chain deter-z mine the sequence in which the harnesses are raised andlovvered and thereby regulatejthe pattern. The` matter thus far described is old and forms no part of our present invention. Y

'In carrying the preferred form of our invention intOeEect We provide a clip such as set forth more'pa'rticularly in Figs. 4 andV 5 and having a flat body portion 20 having 'perforation's V21 slightly 'larger in diameter "thanthe holes15,jbut placedas to bein substantial registervvith certain of the latter. -gAn Open-` in Fig. 4 corresponds Ito One-'of the holes 15.85

Lugs 23-'extend Alaterallyfrom the body 20, beingprefeiiably at right angles to the latter' beforeassembly.' S.These lugsV are disposedl as suggested in Fig. L and arestruckjfrom andl are integral With-the body. Oppositely eX-V tending horns'24 are perforated as at 25 to receive connecting links 26 Which attachvthe adjacent-bars together.Y v l 'A I FlachA end of each bar in the preferred form is provided. With a slot 30 cut so as to be Yparallel to the faces 11 and 12 and preferably of v such a depth that when the Yplate 20 isset therein the holes 21 and notch 22 will register with certain of the holes 1 5`o'fthe correspond- A ing chain bar'. 4The lugsf23 lmay be ben-t in- 10o Wardly as suggested at 31 in Fig. 2 so as to clinch the Wood by penetration to prevent endwise movement of the clip With respect to the chain bar. When the pegs are to' be applied to those holes. 15 Which..are in register with thel holes 21 or notch 22 no interference on the part of the body 20 Will be experienced, and if the clip should be misplaced slightly in any direction the pegs can be inserted be-V cause of? the fact that theholes`21'arevlarger than the holes 15.

The right hand edge of the body f as, viewed in Fig. 4 is preferably held in tight contact with the right hand. end of the slotY 15 30 as shown in Figs. 1 and 3 While the lugs are being forced in place and there'is therefore little or no likelihood that the clipwi'l'll be. able to turn. Y

Inthe modified formj We provide a clip 40 2Q; having substantially parallel sides 41 extend? through a closed slot42 in bar 43 and parallel With the faces 44 and 45, respectively andlocated preferably midway betweenthem. Eachend of the clip has struck therefrom a lug46 to-define an opening oreyelet 47. The d lugs46 are forced against the inclined sur- CQS 48V and preferably are embedded in the Wooden bar to prevent transverse movement ofthe clip. Thegside Walls of the slot 42 pref- 3Q; erably engage the sides 41 of the clip and YYprevent longitudinal movementv of the bar. This lattervprovision may be omitted Where the lugs v are forced into the inclined. surfaces 48. Attachinglinks or Yloops 49 pass through 3fthe1eyelets of tWo adjacent barsto connect.V

4them together. As in the preferred form the cli-p isprovidedwith openings 51 Which may align-With certain ofthe smaller holes 50.y

F 'romtlie foregoing it Will be seen that We 4Q-have provided a simple; form of clip for connecting together the various bars of a dobby pattern chainand that a metal to metal contact is securedv which relieves the bars of strain, It will furthergbe seenthat the clip 4'fis-formed of a singlepiece of metal havingv lugs integral thereWithzWhich engage parts ofY` the bar to prevent transverse movement of the clip. It Willbe also seen that the lugs can be forced into the Wood'v so as to prevent loss of. the clip out ofl theopen or free end ofthe slot in the preferred form. In themodiedform it Will be seen that the lugs 46 formthe'eyelets47 when struck from the body offthe clip, and that the eyelets are aligned 5?? with the lugs so that no twisting strain exists tending Ato loosen the clip onthe bar.

.Having thus described our invention it will be seen that changes andmodifications may be made therein by those skilledin the art With- Q out departing from the. spiriti and scope of the invention fand we .do not'Wish to be limited1 tothe details herein disclosed, but whatweclaim; is n 1;. In-azdobby pattern chain operating with 651i pattern'pegs, a1 chainbar having transverse holes for the pegs, and a sheet metal clip secured to the bar to attach the same to adj acent bars and Vhaving perforations aligned With certain of the peg holes of the bar.

2. A dobby pattern chain bar having pattern peg holes therethrough .and provided with an attaching clip extending transversely opening registerposite; sides ofthe bar to prevept transversel movement of theclip. onithebarf; and: attaching. eyelets on the, clip.- separatetfrom thelugs; 5. A dobby pattern chain bar havingflroles;V

therethrough .for patterny chain pegsand provided With a sheet metal-attaching clip. ex-

tending through the bary and4 haviiig'a per foration aligned with one ofthe peg-holes, and liold-inglugs on the clip to engage oppo-Y site sides of thebar to.V prevent transvers movement of the clip.l on .thebarV e 6. Adobby patternchainfbar havingpattern elementholes;therethroughf andprovided with aclip having a perforation aligned' With..

one of the holes, said clip4 having attaching eyelets onopposite sides of the bar..

7 A dobby pattern chain barrhaving'pattern element holes therethroughiandprovided with" a. clip having aiperforationlaligned*with' one of the holes,V saidw clip having attachingv eyelets on opposite; sides of the barand said.

clip havingi'ntegrallugstov engage the-bari' on opposite sides thereof.` 'i

8. A dobby'patternchainbarhavingfpat tern element holes therethrough andprovided With acliphavingga perforation aligned With onevof theholes, said clip havingattachingi eyelets on; oppositefsides of thevbarfand said, clip having integrallugsindependent of; theeyelets to engage thebarl on opposite sides'.

thereof. y

9. A- dobbypattern chain barv provided with an attaching clip having closed eyeletsdefined by strikinglbar engaging lugs from the clip. i

10. A dobby pattern chain bariha'ving a..

sheet metalcl'ipextending therethrough, said` cllp having integral lugs` struck therefrom into engagement With the bar, and attaching eyelets formedf entirely byA parts 'ofthe clip` and defnediin part .by saidlugs. l

11. In a dobby patternchainbar, a transversely extending" sheet' metal clip passing" throughk the bar, eyelets formed on opposite ends ofthe-clip, and lugslocatedbetvveen the eyelets and struck from the clip'and' having holding engagement With-the bar.

12. In a dobby pattern chainfbar, a-clip extending transversely. of? the "bar,- lugs 

